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Publication numberUS2303108 A
Publication typeGrant
Publication dateNov 24, 1942
Filing dateJun 20, 1941
Priority dateJun 20, 1941
Publication numberUS 2303108 A, US 2303108A, US-A-2303108, US2303108 A, US2303108A
InventorsJasper Blackburn
Original AssigneeJasper Blackburn
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Cable ring or hanger
US 2303108 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

"Nov. 24. 1942. J. BLACK'BURN 2,303,108-

I CABLE ung on aim GER I rfiled June 20, 1941 2 Sheets-Sheet 1 AT TORNFV 9 2- J. BLACKBURN 2,303,108 n ABm RING oniuuem 7 Filed June 20, 19 1: 2 Sheets-Sht 2 Patented Nov. 24, 1942 UNITED STATES PATENT OFFICE I I 2,303,1oss a CABLE, RING on HANGER? Jasper Blackbum, Webster Groves, Mo.

Application June' 20, 1941, seawater):

4. Claims.

This invention relates to cable rings, hangers or supports, as conventionally used in telephone and telegraph installations, for supporting from the messenger wire asextended between the poles, the tubular came in the form of a leaden sheath used for carryingthe group or fascine of electrical conductors.

In ordinary practice with conventional forms of cable rings or hangers, the cable depends in a substantialh spaced relation below the messenger wire and lies freely'within the ring, which is considerably' larger in diameter-than the cable, with the result that under the action of the wind, the cable is caused to sway an'd roll within the ring. This frictional rolling action in time causes the ring to wear through the leaden sheath of the cable and through the conductor insulationsor wrappings, so'that the metallic ringdirectly contacts and cuts into the conductors themselves, with of course various injurious effects, such as short circuiting of thewires.

It is the primeobject of the present invention therefore, to provide a form or forms of cable ring or hanger of the kindreferred to, whereby the cable will be closely clamped below and in contact with the messenger wire for obviating independent swing of the cable, and which may be quickly'mounted in place or removed.

Another object of the invention is to provide a practical and economical form or forms of cable ring or hanger'for closely yoking the cable to the supporting messenger wire, thereby eliminating independent motion of the cable and the consequent wear thereon as caused by conventional forms of loose rings, with means included for readily assembling the device upon the cable and messenger wire, means forpreventing the device from creeping on the messenger wire, and means for adjusting the device closely upon cables of varying diameters.

Another object of the invention is to provide, in a device of the kind described, an element for overlying a messenger wire, another element for underlying the cable and releasable means for closely locking the assembly together, with the messenger wire and cable in close contact.

With the stated objects in view, certain preferred embodiments of the invention are shown in the accompanying drawings, wherein:

Figure 1 is a perspective view of the hinged form of cable ring or hanger, showing thesame opened, as for the reception of the cable and messenger wire.

Figure 2 is a top plan view of the hinged form of Figure 1, as operatively closed upon a cable and messenger wire, and releasably held in place by meansof a removable locking key or pin.

Figure 3 is a side elevational view of the assembly of Figure 2.

Figure 4 isa transverse section on the line 4-4 of Figure 3 I Figure 5is atransverse section on theline: 55-

of Figure 3;

Figures 6, 7, Sand 9- are views corresponding respectively to Figures-1, 2, 3 and 4, showing the:

adjustable lock form of the device.

Figures 10; 1'1, 12and 13 are views corresponding. respectively-to Figures 1, 2, 3 and 4, showing: the

Ma and Mb; The devices are all preferably formed-of sheet metal, and as shown in Figures 1' to 5 representing the hinged form with removable locking key, the hanger represented generally ass, comprises an upper, semi-circular messenger engaging shell 6, including a reduced, centrally extended, channel 1, arcuate in crosssection, for directly overlyingthe messenger wire M, and at either side'thereof pendent side members or skirts 8 for'pa-rtially embracing the cable Cat'each side'thereof. A reduced or shortened hinge-sleeve 9 is turned at the lower endof one side member, and asimilarly reduced lock-sleeve lll-isturned at-the lower end of the opposite side member:

A similar semi-circular and complemental cable support or stirrup II is provided, the messenger engaging portion however being omitted of course, and islikewise formed at its ends with spaced marginal hinge-sleeves l2 at one side and with lock-sleeves I3 at the opposite end, the spaces between the same being dimensioned to nicely engage the hinge-sleeve 9 and the lock sleeve I0, respectively, of the messenger engaging shell 6. Thesetwoparts 6 and II are then dove-tailed together in the manner indicated, and a hinge pin I4 is passed through the aligned hinge sleeves 9 and I2 and its ends upset to permanently anchor the pin in place. A similar locking pin I5 is provided for removable insertion through the aligned and dove-tailing lockrsleeves l0 and l3 of the elements at their opposite side, the pin l5 having a, turned end Hi to serve as a handle.

In the use of this form of hanger, the same is opened to receive the messenger wire M and the cable C, the element 6 being positioned over the former and the element I I under the latter. The device is then closed and locked with the pin I5 in the manner stated. I

The parts are so formed and dimensioned as to press the messenger and cableclosely together, when the device is locked thereon as described.

The modified and adjustable hinged form of hanger So, as shown in Figures 6 to 9, comprises.

a substantially flat messenger engaging element 6a formed with a central channel Ia for overlying the messenger M, and with marginal hinge and lock-sleeves 9a, 10a repsectively. The arcuate cable stirrup I la is formed at its end margins with pairs of spaced hinge-tongues IZa. and locktongues I311.

The hinge-tongues 12a are passed up through spaced hinge slots formed in the element 6a inwardly of the hinge-sleeve 9a and are then turned outwardly, down over this sleeve as at IZab to provide a hinge joint. Similarly spaced lock-slots 2| are formed in the opposite margin of the element 6a inwardly of the lock-sleeve Illa, and adapted to slidably engage the lock-tongues l3a, which may be bent outwardly and down over the lock sleeve Illa, at any adjusted position to lock the messenger and cable closely together, as shown in Figures 7 to 9. Thus this form of the device is well adapted for use with cables of different sizes.

In the modified slidable lock form 5b of the hanger, as shown in Figures 11 to 13, the messenger engaging element Bbis also substantially flat, and formed with a central channel lb for overlying the messenger M. However this element 6b is slightly tapered as shown, and has its lateral margins turned down and inward to form slide-ways 22. One end of this element isalso rolled up and over to provide a finger-piece 23. Th arcuate or semi-circular cable-stirrup llb is extended well up at the sides, and the lateral margins thereof are turned flatly outward in a common plane to form slides 24, and these slides are tapered in their edges as shown, in the same direction 'andcomplementally to the taper of the element 6b.

The stirrup or cable ring Nb and slides 24 are of course dimensioned to -co-act with the messenger engaging element 6b, and so that the slides 24 will nicely flt into the slide-ways 22.

With the element 6b properly located over the messenger wire M, and the cable C within the stirrup l lb, the elements are quickly locked closely together by sliding the element llb ontothe element 6b, where they are frictionally and removably interlocked, in the manner stated.

In order to prevent the devices as described from "creeping upon or along the messenger wire or cable M, the inner walls or faces of the messenger enga i g elements 6, 6a, 6b, may be corrugated or fluted spirally, as shown at 25 in all views, and thus adapted to intermesh with the spiral flutings and fillets M of the conventional type of messenger wire cables employed in practice.

As a matter of course the devices may be made of any desirable material, and in any desired sizes to meet requirements.

.It is thought the construction and use of the invention in its several forms, will be well understood from the foregoing description.

While I have here shown and described certain specific forms of the invention, the structural features thereof may be modified within the scope of the claims.

' I claim:

1. In a device of the kind described, for locking together in close contact a multi-strand, spirally twisted messenger wire forming superficial, spirally extended flutes and fillets and a cable, an element for partially embracing the cable at one side, and an element for partially embracing the messenger wire at the opposite side, the inner face of the messenger wire engaging element being spirally corrugated, complementally with the strands of the messenger wire to intermesh with the flutes and fillets thereof, whereby the device is locked against longitudinal movement on the inclosed messenger wire.

2. In a device according to claim 1, means for releasably locking the elements together upon the inclosed messenger wire and cable.

3. In a device of the kind described for releasably and adjustably clamping together a cable anda spirally fluted messenger wire an element for partially embracing the cable over one side thereof, an element for partially embracing the messenger wire over one side thereof oppositely to the first named element and formed on its inner face with spirally extended fillets for intermeshing engagement with the flutes of the messenger wire, for preventing creeping thereon, hinge connections for the two elements at one side, and means for adjustably locking the free margins of th elements together at the opposite side, to accommodate cables of various sizes.

4. In a device according to claim 3, the said adjustable locking means comprising flexible lock-tongues extended from the margin of one element and adapted to slidably engage lockslots formed in the margin of the other element,

whereby the tongues may be passed through the slots and bent down outwardly over the margins thereof for adjustably locking the elements upon the cable and messenger wire.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
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U.S. Classification248/61, 248/73, 403/396
International ClassificationH02G7/06, H02G7/00
Cooperative ClassificationH02G7/06
European ClassificationH02G7/06